<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <link rel="stylesheet" href="css/bootstrap.min.css">
    <style>
        .content {
            width: 50%;
        }
    </style>
</head>

<body>
    <div>
        <a class="btn btn-default" href="#" role="button">Link</a>
        <input class="btn btn-primary" type="text" value="input按钮">
        <button class="btn btn-danger">button按钮</button>
    </div>
    <div class="content">
        <form>
            <div class="form-group">
                <label for="exampleInputEmail1">邮箱地址</label>
                <input type="email" class="form-control" id="exampleInputEmail1" placeholder="Email">
            </div>
            <div class="form-group">
                <label for="exampleInputPassword1">密码</label>
                <input type="password" class="form-control" id="exampleInputPassword1" placeholder="Password">
            </div>
            <div class="form-group">
                <label for="exampleInputFile">File input</label>
                <input type="file" id="exampleInputFile">
                <p class="help-block">Example block-level help text here.</p>
            </div>
            <div class="checkbox">
                <label>
                    <input type="checkbox"> Check me out
                </label>
            </div>
            <button type="submit" class="btn btn-default">Submit</button>
        </form>
    </div>
    <div class="table">
        <table class="table table-bordered">
            <thead>
                <th>序号</th>
                <th>姓名</th>
                <th>年龄</th>
            </thead>
            <tbody>
                <tr>
                    <td>1</td>
                    <td>小明</td>
                    <td>2</td>
                </tr>
                <tr>
                    <td>1</td>
                    <td>小明</td>
                    <td>2</td>
                </tr>
                <tr>
                    <td>1</td>
                    <td>小明</td>
                    <td>2</td>
                </tr>
            </tbody>
        </table>
    </div>
</body>

</html>